Ring bit



FIG. 1 is a first end view of the design;

FIG. 2 is a second end view of the design;

FIG. 3 is a perspective view of the design;

FIG. 4 is another perspective view of the design;

FIG. 5 is another perspective view of the design; and,

FIG. 6 is a side view of the design.

The broken lines shown in the drawings illustrate the portions of the ring bit that form no part of the claimed design. 

CLAIM The ornamental design for a ring bit, as shown and described. 